Sterling Vision Corporation Sterling Vision Corporation Manufactures Various Glass Products Including a Car

Sterling Vision Corporation
Sterling Vision Corporation manufactures various glass products including a car window.The setup cost to produce the car window is $1,200.The cost to carry a window in inventory is $3 per year.Annual demand for the car window is 12,000 units.
Refer to Sterling Vision Corporation.What is the most economical production run (rounded to the nearest unit) ?

A) 6,000 units
B) 3,000 units
C) 9,295 units
D) 3,098 units